Home / 18,240.24-25,188.12-13,756.32

Finding the Fourth Proportional to 18,240.24, 25,188.12 and 13,756.32

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Solution

The fourth proportional to 18,240.24, 25,188.12 and 13,756.32 is: 18,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.24 : 25,188.12 = 13,756.32 : x
  2. Step 2: Convert to fraction form
    18,240.24/25,188.12 = 13,756.32/x
  3. Step 3: Cross multiply
    18,240.24x = 25,188.12 × 13,756.32
  4. Step 4: Simplify right side
    18,240.24x = 346,495,838.92
  5. Step 5: Solve for x
    x = 346,495,838.92/18,240.24
  6. Step 6: Final answer
    x = 18,996.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.